You need to stop baiting me or this is going to start going very badly for you. Nothing is OP if you don't use/abuse it. Grow up.
You said " It was a great mod with useful utilities that could be extremely helpful and entirely balanced for people who are mature enough to moderate their own decisions and behavior,"
I think there are two types of players, apparently. You want to set your own limits, others like me want the game to set limits... so I can push them. It's like a race car on a track. i want the track to be well defined, and my enjoyment is trying to race my car as close to the limits of the track as possible. I want to set up my car to try and get through the curves as quickly and efficiently as possible... all within the guidelines that are set that are beyond my control, and that my fellow racers have to follow too.
You don't want to race, which is fine. You enjoy driving the car around and finding fun things to do inside the track, and don't like the boundaries. Both are fine. But don't call the race drivers immature, they just enjoy different things than you do. They felt EE3 ruined things, broke the boundaries, like Richard Petty with a hemi engine in the 1970s. Did you know he would beat the rest of the pack by LAPS, because he had a hemi style engine, while the rest used wedge style?
At that point there are two options. People can say they enjoy the cars they have, and watch Petty run laps beyond them... which is fine! If you play SSP then there is no Richard Petty running laps around you. For me, even if I want to just enjoy the scenery, I have a Petty who is taunting me as he laps me over and over. The testosterone flares up! NAY! I WILL ALSO USE SUPERIOR TECHOLOGY! I'm weak. I know.
So the second option is to give in, and use the hemi engine (EE2) and run with the big dogs. Even today you get people noting how they made X diamonds a minute, using EE2. Is it immature? I don't think so, I think some of us just like PUSHING boundaries, instead of figuring out how to make our own. While i use fermenters and stills right now in my 29 max sized boiler biofuel base that maxed out a gregtech matter fab (this is a subtle joke, can you feel the testosterone that makes me brag about that accomplishment there?
) I can't force myself to use an IC2 miner, instead of turtles or quarries. Although i started using turtles thinking they would be a fun mid game alternative to a quarry. Boy was i wrong! I...felt the testosterone flow! And LO! From the heavens of Computercraft.info I did find scripts of the gods! Carving out only every third level, but gathering all the ores, the efficiency of turtles was increased! Using blaze rods from minium stone exploits, I quickly setup ender chests and a set of 4 turtles, and the God of Ore did come down from his lofty perch to bestow great gobs of metals upon me! Faster than a quarry I dug, and using less resources to fuel them. And life was good. Cherubs sang and dryads ran through the woods, playing their harps while the Gods of Ores rained their metallic goodness down upon my world.
Well as you can see, for people like me, its hard not to push things, for some reason. You call it immaturity, I call it Evolution. Our entire society is built upon humans wanting to do things faster and more efficiently. I don't think wanting a game to set limits so that we can PUSH those limits is really all that wrong. I'd pay for it!
To whoever reads this: if you did not smile or chuckle at this at all, please tell me, as I need to know that I have zero sense of humor, and I can let my wife know that she has been right all these years.